Add Mossberg 590M

[GuardianDll]

Summary

Content "Added Mossberg 590M. Just look at this gun, it is ridiculous"

Purpose of change

Discussion about gun removing sparked me a bit, and i found the very existence of the gun to be fun

Describe the solution

Added ridiculous gun, it's mags, make itemgroup stuff

Testing

Walked around, shooted zeds with a gun, found mags

Additional context

Gunbroker as proof, but the gun was designed in 2018, and is still manufactured by Mossberg & Sons

And, just, look at this thing! They even left the tube mag untouched to cheapen the manufacturing!

[github-actions[bot]]

Spell checker encountered unrecognized words in the in-game text added in this pull request. See below for details.

Click to expand

* A classic Mossberg 590 pump-action shotgun, modified by the manufacturer to **utilise** box magazines.

This alert is automatically generated. You can simply disregard if this is inaccurate, or (optionally) you can also add the new words to tools/spell_checker/dictionary.txt so they will not trigger an alert next time.

Hints for adding a new word to the dictionary

* If the word is normally in all lowercase, such as the noun `word` or the verb `does`, add it in its lower-case form; if the word is a proper noun, such as the surname `George`, add it in its initial-caps form; if the word is an acronym or has special letter case, such as the acronym `CDDA` or the unit `mW`, add it by preserving the case of all the letters. A word in the dictionary will also match its initial-caps form (if the word is in all lowercase) and all-uppercase form, so a word should be added to the dictionary in its normal letter case even if used in a different letter case in a sentence. * For a word to be added to the dictionary, it should either be a real, properly-spelled modern American English word, a foreign loan word (including romanized foreign names), or a foreign or made-up word that is used consistently and commonly enough in the game. Intentional misspelling (including eye dialect) of a word should not be added unless it has become a common terminology in the game, because while someone may have a legitimate use for it, another person may spell it that way accidentally.

[Kantonine]

Very nice! Can't wait to use this!

[kevingranade]

So side note if you can't search completed items on gunbroker and you get 100+ hits with current postings that's fine, it's just if it's under 100 on current hits you'll need to bug someone to search for you (I'll do it if I'm around).